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Time-Dependent phase changes in Cu-rich amalgams

โœ Scribed by Marshall, Sally J. ;Marshall, Grayson W.

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
476 KB
Volume
13
Category
Article
ISSN
0021-9304

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โœฆ Synopsis

Cu-rich amalgams represent a significant change in amalgam alloy formulations which may result in enhanced performance. Significantly, these systems reduce or eliminate the y? phase. This work studied the phase changes which occurred from one hour to six months in 13 commercial amalgams by x-ray diffraction. This included 9 two-particle or blend systems and 4 single-particle systems. yz was found in all systems, but was reduced or eliminated on storage a t 37OC at rates which varied from system to system. During yz elimination, the CuGSns content correspondingly increased, indicating that solid-state reaction occurs for up to six months in some systems.

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